Refactor network references

configuration/data/nodes.nix

@@ -1,4 +1,6 @@
-{
+let
+	injectHostnames = builtins.mapAttrs (hostname: attributes: { hostname = hostname; } // attributes);
+in injectHostnames {
 	"machine-workbot-01.cryto.net" = {
 		friendlyName = "workbot";
 		ipv4 = "148.251.195.23";

configuration/default.nix

@@ -36,7 +36,9 @@ in {
 		description = "Cryto";
 	};
 
-	"machine-borg2-01.cryto.net" = { pkgs, lib, ... }: {
+	"machine-borg2-01.cryto.net" = let
+		self = nodes."machine-borg2-01.cryto.net";
+	in { pkgs, lib, ... }: {
 		system.stateVersion = "18.09";
 		networking.hostName = "machine-borg2-01";
 
@@ -47,9 +49,9 @@ in {
 			presets.base
 			presets.kvm
 			./hardware-configurations/machine-borg2-01.nix
-			(tincConfiguration { hostname = "machine-borg2-01.cryto.net"; nodes = nodes; })
-			(trackSystemMetrics nodes."machine-borg2-01.cryto.net".internalIpv4)
-			(trackServiceMetrics nodes."machine-borg2-01.cryto.net".internalIpv4)
+			(tincConfiguration { hostname = self.hostname; nodes = nodes; })
+			(trackSystemMetrics self.internalIpv4)
+			(trackServiceMetrics self.internalIpv4)
 		];
 
 		boot.loader.grub.device = lib.mkForce "/dev/vda";
@@ -101,7 +103,9 @@ in {
 		};
 	};
 
-	"machine-haless-03.cryto.net" = { pkgs, lib, config, ... }@args: {
+	"machine-haless-03.cryto.net" = let
+		self = nodes."machine-haless-03.cryto.net";
+	in { pkgs, lib, config, ... }@args: {
 		system.stateVersion = "19.03";
 		networking.hostName = "machine-haless-03";
 
@@ -109,9 +113,9 @@ in {
 			presets.base
 			presets.kvm
 			./hardware-configurations/machine-haless-03.nix
-			(tincConfiguration { hostname = "machine-haless-03.cryto.net"; nodes = nodes; })
-			(trackSystemMetrics nodes."machine-haless-03.cryto.net".internalIpv4)
-			(trackServiceMetrics nodes."machine-haless-03.cryto.net".internalIpv4)
+			(tincConfiguration { hostname = self.hostname; nodes = nodes; })
+			(trackSystemMetrics self.internalIpv4)
+			(trackServiceMetrics self.internalIpv4)
 			(httpHealthChecks {
 				both = [
 					"iomfats.cryto.net"
@@ -226,7 +230,9 @@ in {
 		};
 	};
 
-	"machine-konjassiem-02.cryto.net" = { pkgs, lib, config, ... }@args: {
+	"machine-konjassiem-02.cryto.net" = let
+		self = nodes."machine-konjassiem-02.cryto.net";
+	in { pkgs, lib, config, ... }@args: {
 		system.stateVersion = "20.03";
 		networking.hostName = "machine-konjassiem-02";
 
@@ -234,9 +240,9 @@ in {
 			presets.base
 			presets.kvm
 			./hardware-configurations/machine-konjassiem-02.nix
-			(tincConfiguration { hostname = "machine-konjassiem-02.cryto.net"; nodes = nodes; })
-			(trackSystemMetrics nodes."machine-konjassiem-02.cryto.net".internalIpv4)
-			(trackServiceMetrics nodes."machine-konjassiem-02.cryto.net".internalIpv4)
+			(tincConfiguration { hostname = self.hostname; nodes = nodes; })
+			(trackSystemMetrics self.internalIpv4)
+			(trackServiceMetrics self.internalIpv4)
 			(httpHealthChecks {
 				both = [ "git.cryto.net" ];
 			})
@@ -373,7 +379,9 @@ in {
 		};
 	};
 
-	"machine-pikachu-02.cryto.net" = { pkgs, lib, config, ... }@args: {
+	"machine-pikachu-02.cryto.net" = let
+		self = nodes."machine-pikachu-02.cryto.net";
+	in { pkgs, lib, config, ... }@args: {
 		system.stateVersion = "19.03";
 		networking.hostName = "machine-pikachu-02";
 
@@ -381,20 +389,22 @@ in {
 			presets.base
 			presets.kvm
 			./hardware-configurations/machine-pikachu-02.nix
-			(tincConfiguration { hostname = "machine-pikachu-02.cryto.net"; nodes = nodes; })
-			(trackSystemMetrics nodes."machine-pikachu-02.cryto.net".internalIpv4)
-			(trackServiceMetrics nodes."machine-pikachu-02.cryto.net".internalIpv4)
+			(tincConfiguration { hostname = self.hostname; nodes = nodes; })
+			(trackSystemMetrics self.internalIpv4)
+			(trackServiceMetrics self.internalIpv4)
 		];
 	};
 
-	"machine-workbot-01.cryto.net" = { pkgs, lib, config, ... }@args: {
+	"machine-workbot-01.cryto.net" = let
+		self = nodes."machine-workbot-01.cryto.net";
+	in { pkgs, lib, config, ... }@args: {
 		system.stateVersion = "18.03";
 		networking.hostName = "machine-workbot-01";
 
 		imports = [
 			presets.base
 			./hardware-configurations/machine-workbot-01.nix
-			(tincConfiguration { hostname = "machine-workbot-01.cryto.net"; nodes = nodes; })
+			(tincConfiguration { hostname = self.hostname; nodes = nodes; })
 			(trackSystemMetrics "127.0.0.1")
 			(trackServiceMetrics "127.0.0.1")
 			(httpHealthChecks {